ES2495423T3 - Método para reducir el gasto general de información de realimentación en sistemas MIMO OFDM precodificados - Google Patents
Método para reducir el gasto general de información de realimentación en sistemas MIMO OFDM precodificados Download PDFInfo
- Publication number
- ES2495423T3 ES2495423T3 ES11182198.9T ES11182198T ES2495423T3 ES 2495423 T3 ES2495423 T3 ES 2495423T3 ES 11182198 T ES11182198 T ES 11182198T ES 2495423 T3 ES2495423 T3 ES 2495423T3
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- 238000000034 method Methods 0.000 title claims abstract description 59
- 230000005540 biological transmission Effects 0.000 claims abstract description 43
- 238000004891 communication Methods 0.000 claims abstract description 13
- 239000011159 matrix material Substances 0.000 claims description 92
- 239000013598 vector Substances 0.000 claims description 30
- 230000000295 complement effect Effects 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims 4
- 230000011664 signaling Effects 0.000 description 22
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 230000000875 corresponding effect Effects 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 6
- 230000006978 adaptation Effects 0.000 description 5
- 238000005562 fading Methods 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000002372 labelling Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000007792 addition Methods 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0634—Antenna weights or vector/matrix coefficients
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0658—Feedback reduction
- H04B7/066—Combined feedback for a number of channels, e.g. over several subcarriers like in orthogonal frequency division multiplexing [OFDM]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0636—Feedback format
- H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03343—Arrangements at the transmitter end
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
- H04L2025/03375—Passband transmission
- H04L2025/03414—Multicarrier
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
- H04L2025/03426—Arrangements for removing intersymbol interference characterised by the type of transmission transmission using multiple-input and multiple-output channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/03777—Arrangements for removing intersymbol interference characterised by the signalling
- H04L2025/03802—Signalling on the reverse channel
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Power Engineering (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP09177999A EP2157707B1 (en) | 2006-06-20 | 2006-06-20 | System and processor for reducing feedback information overhead in precoded MIMO-OFDM systems |
| EP11182198.9A EP2400672B1 (en) | 2006-06-20 | 2006-06-20 | Method for reducing feedback information overhead in precoded mimo-ofdm systems |
| EP06742199A EP2033335B1 (en) | 2006-06-20 | 2006-06-20 | Method for reducing feedback information overhead in precoded mimo-ofdm systems |
| PCT/CN2006/001403 WO2008009157A1 (en) | 2006-06-20 | 2006-06-20 | Method for reducing feedback information overhead in precoded mimo-ofdm systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2495423T3 true ES2495423T3 (es) | 2014-09-17 |
Family
ID=38956502
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES11182198.9T Active ES2495423T3 (es) | 2006-06-20 | 2006-06-20 | Método para reducir el gasto general de información de realimentación en sistemas MIMO OFDM precodificados |
| ES06742199T Active ES2339277T3 (es) | 2006-06-20 | 2006-06-20 | Metodo para reducir el gasto general de informacion de realimemntacion en sistemas mimo ofdm precodificados. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES06742199T Active ES2339277T3 (es) | 2006-06-20 | 2006-06-20 | Metodo para reducir el gasto general de informacion de realimemntacion en sistemas mimo ofdm precodificados. |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US7817739B2 (pl) |
| EP (2) | EP2157707B1 (pl) |
| JP (1) | JP5032569B2 (pl) |
| CN (1) | CN101273548B (pl) |
| AT (1) | ATE453969T1 (pl) |
| BR (1) | BRPI0621788B1 (pl) |
| CA (1) | CA2655757C (pl) |
| DE (1) | DE602006011514D1 (pl) |
| ES (2) | ES2495423T3 (pl) |
| PL (1) | PL2157707T3 (pl) |
| PT (1) | PT2157707E (pl) |
| WO (1) | WO2008009157A1 (pl) |
Families Citing this family (72)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7917176B2 (en) * | 2006-02-14 | 2011-03-29 | Nec Laboratories America, Inc. | Structured codebook and successive beamforming for multiple-antenna systems |
| PL2157707T3 (pl) | 2006-06-20 | 2012-12-31 | Huawei Tech Co Ltd | System i procesor do redukcji nadmiaru informacji sprzężenia zwrotnego we wstępnie kodowanych systemach MIMO-OFDM |
| KR101455981B1 (ko) * | 2007-08-14 | 2014-11-03 | 엘지전자 주식회사 | 하향링크 상황에 따른 적응적 채널 품질 지시자 생성 방법및 이를 위한 사용자 기기 |
| JP2009182578A (ja) * | 2008-01-30 | 2009-08-13 | Fujitsu Ltd | Mimo−ofdm受信装置およびmimo−ofdm通信システム |
| KR101646759B1 (ko) | 2008-02-28 | 2016-08-08 | 애플 인크. | 무선 통신 시그널링에 적용되는 코딩을 식별하는 정보를 포함하는 피드백 데이터 구조체의 통신 |
| JP5233331B2 (ja) * | 2008-03-12 | 2013-07-10 | 富士通株式会社 | 無線基地局、無線端末及び無線通信方法 |
| KR101336961B1 (ko) | 2008-04-17 | 2013-12-04 | 삼성전자주식회사 | 다중 입출력 무선통신 시스템에서 미드앰블을 이용한프리코딩 장치 및 방법 |
| US8811353B2 (en) | 2008-04-22 | 2014-08-19 | Texas Instruments Incorporated | Rank and PMI in download control signaling for uplink single-user MIMO (UL SU-MIMO) |
| JP5251304B2 (ja) * | 2008-07-04 | 2013-07-31 | 日本電気株式会社 | 通信システム、無線通信装置、及び通信方法 |
| KR20100019948A (ko) * | 2008-08-11 | 2010-02-19 | 엘지전자 주식회사 | 공간 다중화 기법을 이용한 데이터 전송방법 |
| CN101674165A (zh) * | 2008-09-09 | 2010-03-17 | 华为技术有限公司 | 多载波通信系统中信号误差的反馈方法、设备及系统 |
| WO2010031131A1 (en) | 2008-09-18 | 2010-03-25 | Commonwealth Scientific And Industrial Research Organisation | Vector quantization in wireless communication |
| CN102160313B (zh) * | 2008-09-22 | 2014-03-12 | 株式会社Ntt都科摩 | 基站装置、用户装置和预编码方法 |
| JP5213044B2 (ja) * | 2008-11-11 | 2013-06-19 | 日本電気株式会社 | 通信装置、無線通信システムおよび推定情報のフィードバック方法ならびにプログラム |
| KR101526015B1 (ko) | 2008-11-25 | 2015-06-05 | 엘지전자 주식회사 | 무선통신 시스템에서 데이터 전송방법 |
| US8582678B2 (en) | 2008-12-12 | 2013-11-12 | Electronics And Telecommunications Research Institute | Communication system using multi-user multiple input multiple output (MU-MIMO) communication scheme |
| WO2010076778A1 (en) | 2009-01-05 | 2010-07-08 | Marvell World Trade Ltd | Precoding codebooks for mimo communication systems |
| US8385441B2 (en) | 2009-01-06 | 2013-02-26 | Marvell World Trade Ltd. | Efficient MIMO transmission schemes |
| US8532677B2 (en) | 2009-01-13 | 2013-09-10 | Nokia Siemens Networks Gmbh & Co. | Model based channel state information feedback |
| CN101783776B (zh) * | 2009-01-15 | 2013-04-24 | 华为技术有限公司 | 预编码反馈方法及系统、用户设备和基站 |
| US8238483B2 (en) | 2009-02-27 | 2012-08-07 | Marvell World Trade Ltd. | Signaling of dedicated reference signal (DRS) precoding granularity |
| KR101753391B1 (ko) * | 2009-03-30 | 2017-07-04 | 엘지전자 주식회사 | 무선 통신 시스템에서 신호 전송 방법 및 장치 |
| US8457236B2 (en) | 2009-04-06 | 2013-06-04 | Marvell World Trade Ltd. | Feedback strategies for multi-user MIMO communication systems |
| US8351533B2 (en) * | 2009-04-16 | 2013-01-08 | Intel Corporation | Group resource allocation techniques for IEEE 802.16m |
| JP5607143B2 (ja) | 2009-04-21 | 2014-10-15 | マーベル ワールド トレード リミテッド | 通信方法、通信装置、携帯通信端末、チップセット、および、通信システム |
| JP5135282B2 (ja) * | 2009-05-14 | 2013-02-06 | 株式会社日立製作所 | 無線基地局装置 |
| CN101902304B (zh) * | 2009-05-25 | 2014-10-15 | 株式会社Ntt都科摩 | 一种信道信息反馈方法、预编码方法、接收站及发送站 |
| CN101931442B (zh) * | 2009-06-22 | 2013-07-31 | 电信科学技术研究院 | 一种信息指示的方法及装置 |
| JP5418598B2 (ja) * | 2009-09-15 | 2014-02-19 | 富士通株式会社 | 無線通信システム、無線通信装置および無線通信方法 |
| US8675794B1 (en) | 2009-10-13 | 2014-03-18 | Marvell International Ltd. | Efficient estimation of feedback for modulation and coding scheme (MCS) selection |
| US8917796B1 (en) | 2009-10-19 | 2014-12-23 | Marvell International Ltd. | Transmission-mode-aware rate matching in MIMO signal generation |
| CN102045096A (zh) * | 2009-10-23 | 2011-05-04 | 北京新岸线移动多媒体技术有限公司 | 信息发送方法、用于信息发送的装置、用于通信的装置 |
| JP5669854B2 (ja) | 2009-11-09 | 2015-02-18 | マーベル ワールド トレード リミテッド | 調整送信を利用する基地局にフィードバックデータを送信するための方法及び装置、並びに調整送信スキームを利用する基地局及びフィードバックデータを送信する移動通信端末を備えたシステム |
| EP2514181B1 (en) | 2009-12-17 | 2018-10-03 | Marvell World Trade Ltd. | Mimo feedback schemes for cross-polarized antennas |
| EP2522099A4 (en) | 2010-01-07 | 2014-12-31 | Marvell World Trade Ltd | SIGNALING OF DEDICATED REFERENCE SIGNAL PRECODING GRANULARITY (DRS) |
| US9148205B2 (en) | 2010-01-25 | 2015-09-29 | Qualcomm Incorporated | Feedback for supporting SU-MIMO and MU-MIMO operation in wireless communication |
| JP5258002B2 (ja) * | 2010-02-10 | 2013-08-07 | マーベル ワールド トレード リミテッド | Mimo通信システムにおける装置、移動通信端末、チップセット、およびその方法 |
| KR101276855B1 (ko) * | 2010-03-08 | 2013-06-18 | 엘지전자 주식회사 | 프리코딩 행렬 정보 전송방법 및 사용자기기와, 프리코딩 행렬 구성방법 및 기지국 |
| US8687741B1 (en) | 2010-03-29 | 2014-04-01 | Marvell International Ltd. | Scoring hypotheses in LTE cell search |
| PL2556638T3 (pl) | 2010-04-06 | 2015-10-30 | Nokia Technologies Oy | Konstrukcja książki kodów i struktura dla modularnego sprzężenia zwrotnego |
| CN101873160A (zh) * | 2010-06-12 | 2010-10-27 | 北京邮电大学 | 一种在反馈由多个码字构成的序列时降低反馈量的方法 |
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| EP2606582B1 (en) | 2010-08-16 | 2014-06-04 | Telefonaktiebolaget L M Ericsson (publ) | A method for determining precoding weights |
| JP2012100254A (ja) | 2010-10-06 | 2012-05-24 | Marvell World Trade Ltd | Pucchフィードバックのためのコードブックサブサンプリング |
| US8615052B2 (en) | 2010-10-06 | 2013-12-24 | Marvell World Trade Ltd. | Enhanced channel feedback for multi-user MIMO |
| WO2012060631A2 (ko) * | 2010-11-02 | 2012-05-10 | 엘지전자 주식회사 | 보간을 이용한 프리코딩 행렬 지시자 피드백 방법 및 장치 |
| CN102082639B (zh) * | 2010-11-08 | 2014-01-29 | 大唐移动通信设备有限公司 | 信道状态信息的传输方法和设备 |
| US9048970B1 (en) | 2011-01-14 | 2015-06-02 | Marvell International Ltd. | Feedback for cooperative multipoint transmission systems |
| US8861391B1 (en) | 2011-03-02 | 2014-10-14 | Marvell International Ltd. | Channel feedback for TDM scheduling in heterogeneous networks having multiple cell classes |
| WO2012131612A1 (en) | 2011-03-31 | 2012-10-04 | Marvell World Trade Ltd. | Channel feedback for cooperative multipoint transmission |
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| US8743988B2 (en) | 2011-07-29 | 2014-06-03 | Telefonaktiebolaget Lm Ericsson (Publ) | Transmission mode adaptation in a wireless network |
| CN102291167B (zh) * | 2011-08-05 | 2018-06-15 | 中兴通讯股份有限公司 | 一种性能测试方法和系统 |
| US8923427B2 (en) | 2011-11-07 | 2014-12-30 | Marvell World Trade Ltd. | Codebook sub-sampling for frequency-selective precoding feedback |
| WO2013068915A2 (en) | 2011-11-07 | 2013-05-16 | Marvell World Trade Ltd. | Precoding feedback for cross-polarized antennas with magnitude information |
| US9031597B2 (en) | 2011-11-10 | 2015-05-12 | Marvell World Trade Ltd. | Differential CQI encoding for cooperative multipoint feedback |
| US9220087B1 (en) | 2011-12-08 | 2015-12-22 | Marvell International Ltd. | Dynamic point selection with combined PUCCH/PUSCH feedback |
| US9178590B2 (en) | 2011-12-27 | 2015-11-03 | Industrial Technology Research Institute | Channel information feedback method and wireless communication device using the same |
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| JP5488627B2 (ja) * | 2012-02-23 | 2014-05-14 | 富士通株式会社 | Mimo−ofdm受信装置およびmimo−ofdm通信システム |
| US9019896B2 (en) | 2012-04-23 | 2015-04-28 | Qualcomm Incorporated | Systems and methods for low overhead paging |
| CN104521269B (zh) | 2012-04-27 | 2018-05-11 | 马维尔国际贸易有限公司 | 用于基站和移动通信终端之间的多点协作(CoMP)通信方法和装置 |
| US9769677B2 (en) * | 2012-07-02 | 2017-09-19 | Industrial Technology Research Institute | Method and apparatus for bit-adaptive precoding matrix indicator feedback |
| CN108616299B (zh) * | 2013-05-10 | 2021-06-15 | 华为技术有限公司 | 确定预编码矩阵指示的方法、用户设备和基站 |
| CN106301506B (zh) * | 2015-05-15 | 2020-03-13 | 电信科学技术研究院 | 一种码本子集约束的方法及装置 |
| WO2017078611A1 (en) | 2015-11-05 | 2017-05-11 | Telefonaktiebolaget Lm Ericsson (Publ) | Codebook subset restriction for full-dimension mimo |
| CN108632001B (zh) * | 2017-03-24 | 2024-09-17 | 华为技术有限公司 | 一种参考信号发送方法、接收方法和装置 |
| EP3737009A4 (en) * | 2018-01-29 | 2020-12-30 | Huawei Technologies Co., Ltd. | PROCESS FOR REPORTING A PRECODING MATRIX INDEX, COMMUNICATION DEVICE AND SUPPORT |
| US10965786B2 (en) | 2018-10-31 | 2021-03-30 | At&T Intellectual Property I, L.P. | Adaptive fixed point mapping for uplink and downlink fronthaul |
| CN118199834A (zh) * | 2019-01-09 | 2024-06-14 | 华为技术有限公司 | 参数配置方法和通信装置 |
| CN116419382A (zh) * | 2021-12-31 | 2023-07-11 | 华为技术有限公司 | 一种上行预编码方法及装置 |
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| US7680461B2 (en) * | 2003-11-05 | 2010-03-16 | Sony Corporation | Wireless communications system, wireless communications method, and wireless communications apparatus |
| KR100690872B1 (ko) * | 2004-01-20 | 2007-03-09 | 엘지전자 주식회사 | 폐루프 mimo 시스템의 신호 전송 방법 |
| US7570696B2 (en) * | 2004-06-25 | 2009-08-04 | Intel Corporation | Multiple input multiple output multicarrier communication system and methods with quantized beamforming feedback |
| US7609780B2 (en) * | 2004-09-30 | 2009-10-27 | Intel Corporation | Method and apparatus for performing sequential closed loop multiple input multiple output (MIMO) |
| US8031642B2 (en) * | 2004-10-20 | 2011-10-04 | Zte (Usa) Inc. | Subcarrier cluster-based power control in wireless communications |
| US7139328B2 (en) * | 2004-11-04 | 2006-11-21 | Motorola, Inc. | Method and apparatus for closed loop data transmission |
| CA2646693C (en) | 2006-03-24 | 2012-07-17 | Huawei Technologies Co., Ltd. | Method and system for subband indicator signalling |
| PL2157707T3 (pl) | 2006-06-20 | 2012-12-31 | Huawei Tech Co Ltd | System i procesor do redukcji nadmiaru informacji sprzężenia zwrotnego we wstępnie kodowanych systemach MIMO-OFDM |
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| ATE453969T1 (de) | 2010-01-15 |
| DE602006011514D1 (de) | 2010-02-11 |
| EP2033335A1 (en) | 2009-03-11 |
| WO2008009157A1 (en) | 2008-01-24 |
| CA2655757C (en) | 2012-01-31 |
| BRPI0621788B1 (pt) | 2016-05-31 |
| CN101273548A (zh) | 2008-09-24 |
| EP2157707A1 (en) | 2010-02-24 |
| CA2655757A1 (en) | 2008-01-24 |
| EP2033335A4 (en) | 2009-08-26 |
| ES2339277T3 (es) | 2010-05-18 |
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| US20090147880A1 (en) | 2009-06-11 |
| JP2009542052A (ja) | 2009-11-26 |
| BRPI0621788A2 (pt) | 2011-12-20 |
| PL2157707T3 (pl) | 2012-12-31 |
| US7817739B2 (en) | 2010-10-19 |
| EP2157707B1 (en) | 2012-07-04 |
| JP5032569B2 (ja) | 2012-09-26 |
| CN101273548B (zh) | 2010-12-08 |
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